GB201312283D0 - A rotor assembly - Google Patents

A rotor assembly

Info

Publication number
GB201312283D0
GB201312283D0 GBGB1312283.3A GB201312283A GB201312283D0 GB 201312283 D0 GB201312283 D0 GB 201312283D0 GB 201312283 A GB201312283 A GB 201312283A GB 201312283 D0 GB201312283 D0 GB 201312283D0
Authority
GB
United Kingdom
Prior art keywords
rotor
root
rim
rotor blade
slots
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
GBGB1312283.3A
Other versions
GB2507144A (en
GB2507144B (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rolls Royce PLC
Original Assignee
Rolls Royce PLC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Rolls Royce PLC filed Critical Rolls Royce PLC
Publication of GB201312283D0 publication Critical patent/GB201312283D0/en
Publication of GB2507144A publication Critical patent/GB2507144A/en
Application granted granted Critical
Publication of GB2507144B publication Critical patent/GB2507144B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/30—Fixing blades to rotors; Blade roots ; Blade spacers
    • F01D5/3023—Fixing blades to rotors; Blade roots ; Blade spacers of radial insertion type, e.g. in individual recesses
    • F01D5/303—Fixing blades to rotors; Blade roots ; Blade spacers of radial insertion type, e.g. in individual recesses in a circumferential slot
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/30—Fixing blades to rotors; Blade roots ; Blade spacers
    • F01D5/3023—Fixing blades to rotors; Blade roots ; Blade spacers of radial insertion type, e.g. in individual recesses
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/30—Fixing blades to rotors; Blade roots ; Blade spacers
    • F01D5/3007—Fixing blades to rotors; Blade roots ; Blade spacers of axial insertion type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2260/00—Function
    • F05D2260/30—Retaining components in desired mutual position
    • F05D2260/38—Retaining components in desired mutual position by a spring, i.e. spring loaded or biased towards a certain position
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T50/00—Aeronautics or air transport
    • Y02T50/60—Efficient propulsion technologies, e.g. for aircraft

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)

Abstract

A rotor assembly includes a rotor disc and a plurality of circumferentially-spaced, radially outwardly extending rotor blades. The rotor disc has a rim and a plurality of circumferentially spaced slots provided in the rim of the rotor disc, each rotor blade having a root, the root of each rotor blade being arranged in a corresponding one of the slots in the rim of the rotor disc, and at least one of the slots having a chocking device accommodated within a space between a radially outer surface of the slot and a radially inner surface of the root of the rotor blade. The chocking device includes at least a first spring and a second spring, the first and second springs each abutting a radially inner surface of the root of the corresponding rotor blade and arranged transversely relative to a longitudinal axis of the slot.
GB1312283.3A 2012-07-18 2013-07-09 A rotor assembly Active GB2507144B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GBGB1212750.2A GB201212750D0 (en) 2012-07-18 2012-07-18 A rotor assembly

Publications (3)

Publication Number Publication Date
GB201312283D0 true GB201312283D0 (en) 2013-08-21
GB2507144A GB2507144A (en) 2014-04-23
GB2507144B GB2507144B (en) 2016-07-20

Family

ID=46799779

Family Applications (2)

Application Number Title Priority Date Filing Date
GBGB1212750.2A Ceased GB201212750D0 (en) 2012-07-18 2012-07-18 A rotor assembly
GB1312283.3A Active GB2507144B (en) 2012-07-18 2013-07-09 A rotor assembly

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GBGB1212750.2A Ceased GB201212750D0 (en) 2012-07-18 2012-07-18 A rotor assembly

Country Status (3)

Country Link
US (1) US9410440B2 (en)
GB (2) GB201212750D0 (en)
SG (1) SG196726A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB201417417D0 (en) * 2014-10-02 2014-11-19 Rolls Royce Plc Slider
US11208893B2 (en) * 2015-05-25 2021-12-28 Socpra Sciences Et Genie S.E.C. High temperature ceramic rotary turbomachinery
CA3044942A1 (en) * 2016-11-25 2018-05-31 Societe De Commercialisation Des Produits De La Recherche Appliquee Socpra Sciences Et Genie S.E.C. High temperature ceramic rotary turbomachinery
GB201819413D0 (en) 2018-11-29 2019-01-16 Rolls Royce Plc Geared turbofan engine
GB201819412D0 (en) * 2018-11-29 2019-01-16 Rolls Royce Plc Geared turbofan engine

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1067630A (en) * 1965-12-29 1967-05-03 Rolls Royce Bladed rotor for a fluid flow machine
JPH01237304A (en) 1988-03-15 1989-09-21 Toshiba Corp Steam turbine bucket pushing-up device
US5123813A (en) * 1991-03-01 1992-06-23 General Electric Company Apparatus for preloading an airfoil blade in a gas turbine engine
FR2841609B1 (en) * 2002-06-27 2004-09-10 Snecma Moteurs BLOWER RETAINER LEVEL RETAINER
US6761538B2 (en) 2002-10-31 2004-07-13 General Electric Company Continual radial loading device for steam turbine reaction type buckets and related method
JP2005273646A (en) * 2004-02-25 2005-10-06 Mitsubishi Heavy Ind Ltd Moving blade element and rotary machine having the moving blade element
FR2881174B1 (en) * 2005-01-27 2010-08-20 Snecma Moteurs DEVICE FOR POSITIONING A DASHBOARD AND AUBAGE DISK COMPRISING SUCH A DEVICE

Also Published As

Publication number Publication date
US9410440B2 (en) 2016-08-09
SG196726A1 (en) 2014-02-13
US20140023508A1 (en) 2014-01-23
GB2507144A (en) 2014-04-23
GB2507144B (en) 2016-07-20
GB201212750D0 (en) 2012-08-29

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